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Pump power control of photon statistics in a nanowire quantum dot

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1103/PhysRevB.102.115401
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0001-6204-3952; Search for: 2ORCID identifier: https://orcid.org/0000-0002-3524-5193; Search for: 1ORCID identifier: https://orcid.org/0000-0001-5163-7640; Search for: 2; Search for: 2; Search for: ; Search for:
Affiliation
  1. National Research Council of Canada. Advanced Electronics and Photonics
  2. National Research Council of Canada. Security and Disruptive Technologies
FormatText, Article
Abstract
Through fluctuations in the local composition, InAsP quantum dots embedded within site-selected InP nanowires are observed to display biexciton binding energies spanning a range between -0.3 meV and +2.9 meV. From this range we select dots having energy-degenerate exciton and biexciton emission and observe an excitation rate-mediated transition from sub- to super-Poissonian second-order correlation statistics. Under pulsed excitation, g⁽²⁾ (τ=0) is found to increase from 0.5 at high excitation levels, rising to 28 as the excitation is reduced by two orders of magnitude. The observed second-order correlation statistics are interpreted using both a stochastic model and a rate equation model of the competition between the various excitonic emission processes. Our results demonstrate that nanowire quantum dots represent a promising approach to the efficient generation of twin-photon states.
Publication date
PublisherAmerican Physical Society
In
  • Physical Review B 102, no. 11, 115401.
LanguageEnglish
Peer reviewedYes
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Record identifiera93ed20e-aa49-4047-b40a-b1422533cf4f
Record created2021-05-11
Record modified2021-05-12
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